________ Betty __________ (study) in this school since she came here in 2008?
---Must the children _____________ (teach) how to cook when they are at home alone?
---Of course. It is necessary for them to learn how to cook.
I didn’t catch what you said just now because I_________ (answer) a call from my aunt.
----Why did John look so unhappy?
----Because he _______________ (not reply) to his wife by the time he left for Paris.
Usually before exams, the students ____________(give) five minutes to write their names and read through the paper.
Simon ____________ (take) a lot of photos while he was in Shanghai. He will show them to us when he returns.
The weather report said that the bad weather ______________ (last) for two days. What shall we do?
Having the robot _______________ (do) all the housework is really great. I can get more free time for my hobbies.